Bridging performance of new eco-friendly lost circulation materials

Alireza NASIRI,Ahmadreza GHAFFARKHAH,Zahra Azimi DIJVEJIN,Masood MOSTOFI,Mostafa Keshavarz MORAVEJI

Table 1 0. Characteristics of RIA-X and bentonite muds.

Mud type Apparent viscosity/ (mPa·s) Plastic viscosity/ (mPa·s) Yield point/ Pa Gel strengths 10s (10 min)/Pa Density/ (kg·m-3) Bentonite 27.5 18 9.1 1.0(1.5) 1 040 RIA-X 29 15 13.4 2.4(3.4) 1 612